Alander Mountain, 2,239 feet (682 m), is a prominent peak of the south
Taconic Mountains; it is located in southwest
Massachusetts and adjacent
New York. Part of the summit is grassy and open and part is covered with scrub oak and shrubs; the sides of the mountain are wooded with
northern hardwood tree species. Views from the top include the southern Taconic Mountains, the
Hudson River Valley including the
Catskills. Several trails traverse Alander Mountain, most notably the 15.7 mi (25.3 km)
South Taconic Trail, which passes just beneath the summit.

Much of the mountain is located within
Taconic State Park and
Mount Washington State Forest; other parcels have been conserved by non-profit organizations. Primitive camping is allowed on Alander Mountain; a cabin is located near the summit and there are two hike-in campsites on the east slope within Mount Washington State Forest.